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Re: HELP! Stereo speaker questions (archive)

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Posted by DJ Vyb on September 12, 2000 at 20:00:19:

In Reply to: HELP! Stereo speaker questions posted by Paul N. on September 12, 2000 at 19:44:04:

I have read most of the archive in this forum regarding replacing the stock speakers and adding a sub. I have a 95 M3 cosmos/black that I bought used. I want to change the front speakers and add a sub. Here are my questions:

1. Do I need to retain the 3-way component setup or can I go with a 2-way setup? Will I still get good sound with the 2-way setup, or I am going to missing some sound?
No you can go with a 2 way setup. The 3 component setup takes the frequencies and simply seperates them 3 ways. The 2 component setup works with the same frequencies only it seperates them to the two speakers rather than 3. The woofer in the 2 way covers a wider range of sound to cover the same range as the 2 woofers in the 3 component setup. It can handle more power as well.

The only problem you may encounter is in reference to phasing. The 2 component set needs the woofer and tweeter to be no more than around 1.5-2' apart. I know in my M3 it is more because the woofer is near your feet and the tweeter is high on the door. Therefore you either want to mount the tweeter down below near the woofer, or phase down the tweeter so it is not as unbalanced. If not you may feel the highs are a bit harsh and sound somewhat separated from the mids. Another factor to consider is that it 3 way matched component speakers are not very common.

2. I recently found out that the previous owner had already cut out the rear deck to put in a pair of subs, using the trunk as the enclosure. I have been told by 2 installers that this is the way to go. Is there enough of a seal to have an open-air sub, or should I have an enclosed box?

Definitely go with the free air subs, especially if the deck is already cut. Good luck!

Any info, opinions, and pics would be helpful.


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